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751d00c47e
- Replace SawTooth copyright header with MySQL's - Bug#19209 Test 'rpl_openssl' hangs on Windows - Spurious "2013 Connection to server lost" errors fixed yaSSL doesn't close socket anymore, that is left to the application
84 lines
2 KiB
C++
84 lines
2 KiB
C++
/*
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Copyright (C) 2000-2007 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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MA 02110-1301 USA.
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*/
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/* random.hpp provides a crypto secure Random Number Generator using an OS
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specific seed
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*/
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#ifndef TAO_CRYPT_RANDOM_HPP
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#define TAO_CRYPT_RANDOM_HPP
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#include "arc4.hpp"
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#include "error.hpp"
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namespace TaoCrypt {
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// OS specific seeder
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class OS_Seed {
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public:
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OS_Seed();
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~OS_Seed();
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void GenerateSeed(byte*, word32 sz);
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Error GetError() const { return error_; }
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private:
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#if defined(_WIN32)
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#if defined(_WIN64)
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typedef unsigned __int64 ProviderHandle;
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// type HCRYPTPROV, avoid #include <windows.h>
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#else
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typedef unsigned long ProviderHandle;
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#endif
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ProviderHandle handle_;
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#else
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int fd_;
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#endif
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Error error_;
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OS_Seed(const OS_Seed&); // hide copy
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OS_Seed& operator=(const OS_Seed&); // hide assign
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};
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// secure Random Nnumber Generator
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class RandomNumberGenerator {
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public:
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RandomNumberGenerator();
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~RandomNumberGenerator() {}
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void GenerateBlock(byte*, word32 sz);
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byte GenerateByte();
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ErrorNumber GetError() const { return seed_.GetError().What(); }
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private:
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OS_Seed seed_;
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ARC4 cipher_;
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RandomNumberGenerator(const RandomNumberGenerator&); // hide copy
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RandomNumberGenerator operator=(const RandomNumberGenerator&); // && assign
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};
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} // namespace
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#endif // TAO_CRYPT_RANDOM_HPP
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